EP0638196A4 - Verbesserte optische plattenstruktur fur elektronen einfangende optische speichermedien. - Google Patents

Verbesserte optische plattenstruktur fur elektronen einfangende optische speichermedien.

Info

Publication number
EP0638196A4
EP0638196A4 EP93910810A EP93910810A EP0638196A4 EP 0638196 A4 EP0638196 A4 EP 0638196A4 EP 93910810 A EP93910810 A EP 93910810A EP 93910810 A EP93910810 A EP 93910810A EP 0638196 A4 EP0638196 A4 EP 0638196A4
Authority
EP
European Patent Office
Prior art keywords
layer
absorbing layer
light
electron trapping
optical memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93910810A
Other languages
English (en)
French (fr)
Other versions
EP0638196A1 (de
Inventor
Robert Eugene Revay
Daniel Thomas Brower
Gregg Duncan Espin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Optex Corp
Original Assignee
Optex Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Optex Corp filed Critical Optex Corp
Publication of EP0638196A1 publication Critical patent/EP0638196A1/de
Publication of EP0638196A4 publication Critical patent/EP0638196A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording-members for original recording by exposure, e.g. to light, to heat or to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/08—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by electric charge or by variation of electric resistance or capacitance
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • G11C13/041—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using photochromic storage elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2531—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising glass
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2532—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising metals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2572—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of organic materials
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146—Laser beam

Definitions

  • the present invention relates to a method of and apparatus for constructing an erasable optical disk for mass data or information storage which performs all of the erasing of data, in a purely photoelectric manner. »>
  • the preferred embodiment of the present invention selectively suppresses the coherent reflection of the two coherent laser beams used for writing and erasing functions. In that manner, it is possible to obtain the benefits of the redirection of the read-out beam without introducing large standing waves in the writing and erasing beams. In the absence of standing waves in the internal fields of the writing and erasing beams, the maximum number of traps in the electron trapping layer can be filled and emptied, thus producing the maximum read-out signal.
  • the drawing Figure shows the construction in diagrammatic form of an erasable optical disk 100K.
  • the various layers of material are deposited on a substrate structure 10a, which may be preferably a ceramic material, such as aluminum oxide. Alternatively, high temperature glasses and other ceramic materials, such as SPINEL (magnesium aluminum silicate) can be used.
  • the substrate may preferably be l-2mm in thickness. It should be understood that the layers on the drawing are not drawn to scale with respect to the relative dimensions of the layers or size of the disk.
  • optically thick wavelength selective layers with the electron trapping layer in an erasable optical disk is advantageous since such layers are much less expensive to fabricate and can be made of materials which would not work in thin layers.
  • the disk structure of Figure 12 can be implemented equally as well by utilizing a highly scattering layer rather than the reflecting layer 20. The use of such a highly scattering layer would be useful in those instances where the larger fraction of redirected light is misdirected because the index of refraction of the electron trapping layer is high.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Manufacturing Optical Record Carriers (AREA)
EP93910810A 1992-04-22 1993-04-21 Verbesserte optische plattenstruktur fur elektronen einfangende optische speichermedien. Withdrawn EP0638196A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US871812 1992-04-22
US07/871,812 US5195082A (en) 1989-12-12 1992-04-22 Optical disk structures for electron trapping optical memory media
PCT/US1993/003908 WO1993021628A1 (en) 1992-04-22 1993-04-21 Improved optical disk structures for electron trapping optical memory media

Publications (2)

Publication Number Publication Date
EP0638196A1 EP0638196A1 (de) 1995-02-15
EP0638196A4 true EP0638196A4 (de) 1995-04-19

Family

ID=25358199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93910810A Withdrawn EP0638196A4 (de) 1992-04-22 1993-04-21 Verbesserte optische plattenstruktur fur elektronen einfangende optische speichermedien.

Country Status (6)

Country Link
US (1) US5195082A (de)
EP (1) EP0638196A4 (de)
JP (1) JPH09503330A (de)
KR (1) KR950701755A (de)
AU (1) AU5109593A (de)
WO (1) WO1993021628A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5502706A (en) * 1989-10-10 1996-03-26 Quantex Corporation Optical storage medium utilizing electron trapping film layers sandwiched with electrodes
JPH08161845A (ja) * 1994-07-05 1996-06-21 Ricoh Co Ltd 光ディスクカートリッジ
US6078468A (en) * 1997-05-01 2000-06-20 Fiske; Orlo James Data storage and/or retrieval methods and apparatuses and components thereof
JPH11328724A (ja) * 1998-05-18 1999-11-30 Fuji Photo Film Co Ltd ３次元光メモリ
US7725779B2 (en) * 2005-01-25 2010-05-25 Ternarylogic Llc Multi-valued scrambling and descrambling of digital data on optical disks and other storage media

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009397A1 (en) * 1989-12-12 1991-06-27 Optex Corporation Three laser optical disk drive system
US5128849A (en) * 1989-12-12 1992-07-07 Optex Corpoataion Optical disk structures for electron trapping optical memory media

Family Cites Families (21)

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Publication number Priority date Publication date Assignee Title
US2527365A (en) * 1945-05-22 1950-10-24 Rca Corp Doubly activated infrared phosphors
US2522074A (en) * 1946-05-03 1950-09-12 Univ Rochester Method of rendering infrared radiation visible employing doubly activated alkaline earth sulfide phosphors
US2521124A (en) * 1946-08-09 1950-09-05 Neville F Miller Infrared strontium sulfide phosphors
US2742631A (en) * 1954-05-27 1956-04-17 Rca Corp Method and apparatus for recording and transmitting information using phosphors
US2979467A (en) * 1958-06-30 1961-04-11 Ibm Infrared stimulable phosphors
US4064066A (en) * 1970-12-21 1977-12-20 Akio Toshinai Phosphors for infrared-to-visible conversion
JPS522869B1 (de) * 1971-01-29 1977-01-25
US4113353A (en) * 1974-04-20 1978-09-12 Akira Matsushita Information processing optical device
US4170475A (en) * 1977-05-12 1979-10-09 Coulter Information Systems, Inc. High speed electrophotographic method
US4358519A (en) * 1977-12-05 1982-11-09 Honeywell Inc. Technique of introducing an interface layer in a thermoplastic photoconductor medium
US4549083A (en) * 1982-06-10 1985-10-22 Matsushita Electric Industrial Co., Ltd. X-Ray imaging device for directly displaying X-ray images
US4527173A (en) * 1984-04-16 1985-07-02 Eastman Kodak Company Erasable, reusable optical recording element and method
AU4297485A (en) * 1984-04-24 1985-11-15 Alternative Energy Research Centre Inc. Infrared sensitive phosphor and method of preparing same
US4576884A (en) * 1984-06-14 1986-03-18 Microelectronics Center Of North Carolina Method and apparatus for exposing photoresist by using an electron beam and controlling its voltage and charge
US4704635A (en) * 1984-12-18 1987-11-03 Sol Nudelman Large capacity, large area video imaging sensor
US4864536A (en) * 1986-06-05 1989-09-05 Quantex Corporation Optical memory system and method of using the same
EP0238759B1 (de) * 1986-03-25 1992-03-11 Kabushiki Kaisha Toshiba Verfahren zum Aufzeichnen von optischer Information
EP0289642B1 (de) * 1987-05-08 1991-12-04 International Business Machines Corporation Löschbare elektrooptische Speicherplatte
US4778985A (en) * 1987-09-14 1988-10-18 Texas Medical Instruments, Inc. Imaging plate structure
EP0371428A3 (de) * 1988-11-29 1991-10-16 Kabushiki Kaisha Toshiba Medium für Informationsspeicherung
US5063538A (en) * 1989-08-30 1991-11-05 Kuehnle Manfred R Optoelectronic signal recording medium and method of making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009397A1 (en) * 1989-12-12 1991-06-27 Optex Corporation Three laser optical disk drive system
US5113387A (en) * 1989-12-12 1992-05-12 Optex Corporation Three laser optical disk drive system
US5128849A (en) * 1989-12-12 1992-07-07 Optex Corpoataion Optical disk structures for electron trapping optical memory media

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9321628A1 *

Also Published As

Publication number Publication date
EP0638196A1 (de) 1995-02-15
US5195082A (en) 1993-03-16
WO1993021628A1 (en) 1993-10-28
KR950701755A (ko) 1995-04-28
AU5109593A (en) 1993-11-18
JPH09503330A (ja) 1997-03-31

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Inventor name: BROWER, DANIEL, THOMAS

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